The text discusses the integration of Split, a feature delivery platform, with New Relic, a monitoring and analytics tool, to enable developers to track the impact of code changes on application performance. The integration uses feature flags to "safely activate or deactivate features" for experimentation, release, testing, operations, and more. By annotating New Relic transactions with feature flag context, developers can correlate application metrics with feature flag changes, providing deeper insights into the effectiveness of their feature releases. With this integration, developers can use New Relic's distributed tracing and NRQL query capabilities to analyze feature flag data, creating custom dashboards and applications to visualize the impact of code changes on user experience.